Why are the vector quantities magnitude and direction
Answers
Because color, cost, temperature, weight, and age
don't tell you enough about the motion.
Related Questions
A 2-kg object is moving horizontally with a speed of 4 m/s. How much net force is required to keep the object moving at this speed and in this direction?
The _____ theory is the most accepted theory regarding the origin of the solar system. It suggests that our star, the Sun, was first created by a cloud of dust and gas. nebular condensation big bang steady state
According to modern atomic theory, it is nearly impossible to determine an electron’s exacta. color.c. chargeb. position.d. mass.
What term refers to the total density of matter and energy needed to give the universe a "flat" geometry in spacetime?
Answers
Explanation:
According to Newton's Second law:
F = ma --- (1)
Where F = Force = ?
m = Mass = 68 kg
a = Acceleration = 1.2 m/s^2
Plug in the values in (1):
(1) => F = 68 * 1.2
F = 81.6 N (The force needed to accelerate the skier at a rate of 1.2 m/s^2)
Answer:
The force needed to accelerate a 68 kilogram-skier at a rate of 1.2ms2 is 81.6 Net forces
Explanation:
Answers
The Tiger has a mass of 34 Kg and runs with a speed of 8.5 m/s, the Connecticut Energy of the tiger 289 Kg m/s.
What is meant by Momentum?
The momentum of an object is defined as the product of mass and velocity of the object.
Mathematically, the momentum of an object is given as;
P = mv
where;
m is the mass of the object
v is the velocity of the object
The principle of conservation of linear momentum states that the total momentum of an isolated system is always conserved.
That is the sum of initial momentum of the system is equal to the sum of the final momentum of the system.
Mass of tiger , m = 34 kg .
Velocity of tiger , v = 8.5 m/s .
Substituting the above values in given formula,
P = mv
= 34 × 8.5
= 289 Kg m/s.
The Connecticut Energy of the tiger 289 Kg m/s.
Learn more about Momentum,
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Answer:
The kinetic energy of the tiger is 1228.25 J.
Explanation:
KE=1/2m*v^2
m=34
v=8.5
KE=1/2*34*8.5^2
KE=17*72.25
KE=1228.25 J
Answers
K=1/2(0.250)(2)^2=0.5j
M=0.250kg
Answers
Answer:
The height of the airplane is 3312.4 meters.
Explanation:
Given that,
Speed of the airplane, v = 1100 km/h = 300 m/s
It takes 26 s for the engine to hit the ground. We need to find the height of the airplane. Using second equation of motion to find it as :
Here, u = 0 and a = g
The height of the airplane is 3312.4 meters.
Answers
Answer;
The comparison that would be best is;
They are in the same group because they have similar chemical properties, but they are in different periods because they have very different atomic numbers.
Explanation;
- Beryllium (Be) is an element is the periodic table with an atomic number of 4, which means it has 4 protons in the nucleus and also 4 electrons in the energy levels, since the number of protons is equal to the number of electrons.
- Beryllium has an electron configuration of 2: 2, which means it has two valence electrons, and has two energy levels which means it occupies period two of the periodic table, and group two of the periodic table.
- Barium (Ba) on the other had, has an atomic number of 56, which means it has 56 protons and 56 electrons. Thus it has an electron configuration of; 2;8;18;18;8;2; this shows that it has 6 energy levels thus occupies period 6 and is in group two since it has two valence electrons.
Answers
Answer:
1.time zones
2.The coriolis effect
3. triangles
Explanation:
1. day and night happen at different times at different places; it's always day somewhere and night another.
2. the coriolis effect means freely moving things (like cannonballs or hurricane winds) are deflected to the right - but only if your north of the equator if you're south of the equator they're deflected left.
3. if you walk a certain distance and make three right angle you can successfully make a triangles with three 90 degree angles which is impossible on a flat surface.